Six strangers, one letter, infinite versions of who you could've loved.
Season 1 • Episode 6
LatestDoes 'X' represent the infinite possibilities of love, or... the version of him/her you’ve never discovered?
Writing
Anthology structure builds mystery brilliantly.
Acting
Cast makes each 'X' feel like destiny.
Trivia, insights & behind the scenes
The anthology format mirrors how we compartmentalize past relationships — each episode is someone's incomplete memory of a person they'll never fully know.
Episode 4's single-take café scene, where the same dialogue plays three times with different emotional readings, became a sleeper viral clip in Korean drama communities.
TW
